diff --git a/src/DistroqueryAPI.cpp b/src/DistroqueryAPI.cpp
index c5b1f75..150e5d9 100644
--- a/src/DistroqueryAPI.cpp
+++ b/src/DistroqueryAPI.cpp
@@ -522,6 +522,44 @@ json DistroqueryAPI::getPackageDetails(string repository, string package, string
     return j;
 }
 
+json DistroqueryAPI::getRepositoryProblems(string repository) {
+    json j;
+    sqlite3_stmt *stmt;
+
+    struct configTag* ct = findRepositoryByTag(repository.c_str());
+    if (ct == NULL) {
+        j["error"] = "repository with tag '" + repository + "' does not exist";
+        return j;
+    }
+
+    auto db = openRepositoryDatabase(ct);
+    if (!db) {
+        j["error"] = "error opening sources database for repository " + string(ct->tag);
+        return j;
+    }
+
+    attachCtDatabases(ct, db);
+
+    j["problems"] = json::array();
+
+    // Check build requires
+    string sql = "SELECT * FROM warnings ORDER BY repository,arch,name";
+    if (sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL) == SQLITE_OK) {
+        while (sqlite3_step(stmt) == SQLITE_ROW) {
+            json problem = {};
+            problem["repository"] = reinterpret_cast<const char*>(sqlite3_column_text(stmt,sqlite3_find_column_id(stmt, NULL, "repository")));
+            problem["arch"] = reinterpret_cast<const char*>(sqlite3_column_text(stmt,sqlite3_find_column_id(stmt, NULL, "arch")));
+            problem["name"] = reinterpret_cast<const char*>(sqlite3_column_text(stmt,sqlite3_find_column_id(stmt, NULL, "name")));
+            problem["text"] = reinterpret_cast<const char*>(sqlite3_column_text(stmt,sqlite3_find_column_id(stmt, NULL, "text")));
+            j["problems"].push_back(problem);
+        }
+        sqlite3_finalize(stmt);
+    }
+
+    sqlite3_close(db);
+    return j;
+}
+
 void DistroqueryAPI::getApiResponse(string path_info) {
     cout << "Content-Type: application/json;charset=utf-8\n\n" << endl;
 
@@ -609,6 +647,12 @@ void DistroqueryAPI::getApiResponse(string path_info) {
                 providers = getProvidersForRequirement(path_split[1], urlDecode(path_split[2]),
                     urlDecode(path_split[3]), urlDecode(path_split[4]));
             cout << providers.dump();
+        } else if (path_split[0] == "problems") {
+            // API service: check problems
+            if (path_split.size() != 2)
+                sendErrorResponse("expected 2 arguments for " + path_split[0]);
+            json problems = getRepositoryProblems(path_split[1]);
+            cout << problems.dump();
         } else {
             sendErrorResponse("invalid request for service '" + path_split[0]);
         }
diff --git a/src/DistroqueryAPI.hpp b/src/DistroqueryAPI.hpp
index 2b5b61c..dbe2e29 100644
--- a/src/DistroqueryAPI.hpp
+++ b/src/DistroqueryAPI.hpp
@@ -50,6 +50,7 @@ class DistroqueryAPI {
         json getPackageSourceDetails(string repository, string package);
         json getBuiltPackagesFromSourceID(configTag* ct, long id);
         json getPackageDetails(string repository, string package, string arch);
+        json getRepositoryProblems(string repository);
 };
 
 #endif // __DISTROQUERY_API_H
diff --git a/src/backend-sqlite3.c b/src/backend-sqlite3.c
index 2f8b558..e85ce75 100644
--- a/src/backend-sqlite3.c
+++ b/src/backend-sqlite3.c
@@ -315,6 +315,56 @@ long generateSQLite_add_changelog(sqlite3 *db, struct changeLog* firstchangelog,
    return lastchangelogid;
 }
 
+long generateSQLite_add_warnings(sqlite3 *db, struct warningList* firstWarning, char* repository) {
+
+   struct warningList* warning = firstWarning;
+   long lastwarningid = 0;
+
+   while (warning) {
+      snprintf(sqlite3_query, PATH_MAX, "INSERT INTO warnings VALUES(NULL,?,?,?,?);");
+
+      if (sqlite3_prepare_v2(db, sqlite3_query, -1, &stmt, NULL)) {
+         fprintf(stderr, "ERROR: SQLite: (%s) %s\n", sqlite3_query, sqlite3_errmsg(db));
+      }
+
+      sqlite3_bind_text(stmt, 1, repository, -1, SQLITE_STATIC);
+      sqlite3_bind_text(stmt, 2, warning->arch, -1, SQLITE_STATIC);
+      sqlite3_bind_text(stmt, 3, warning->name, -1, SQLITE_STATIC);
+      sqlite3_bind_text(stmt, 4, warning->text, -1, SQLITE_STATIC);
+      if (sqlite3_step(stmt) != SQLITE_DONE) {
+         fprintf(stderr, "ERROR: SQLite: (%s) %s\n", sqlite3_query, sqlite3_errmsg(db));
+         return 3;
+      }
+      warning->id = sqlite3_last_insert_rowid(db);
+      lastwarningid = warning->id;
+      sqlite3_finalize(stmt);
+      warning = warning->next;
+   }
+   return lastwarningid;
+}
+
+long generateSQLite_add_needrebuild(sqlite3 *db, struct rebuildList* firstRebuild, long id_source) {
+
+   struct rebuildList* rebuild = firstRebuild;
+   long lastrebuildid = 0;
+
+   while (rebuild) {
+      snprintf(sqlite3_query, PATH_MAX, "INSERT INTO needrebuild VALUES(NULL,%ld,%ld,%ld);",
+         id_source,
+         rebuild->sourceheader->id,
+         rebuild->provider->id);
+
+      if (sqlite3_prepare_v2(db, sqlite3_query, -1, &stmt, NULL)) {
+         fprintf(stderr, "ERROR: SQLite: (%s) %s\n", sqlite3_query, sqlite3_errmsg(db));
+      }
+      rebuild->id = sqlite3_last_insert_rowid(db);
+      lastrebuildid = rebuild->id;
+      sqlite3_finalize(stmt);
+      rebuild = rebuild->next;
+   }
+   return lastrebuildid;
+}
+
 #define SQLITE_TABLE_packages "id INTEGER PRIMARY KEY, "\
    "name STRING, arch STRING, altrepository INTEGER, epoch INTEGER, version STRING, release STRING, summary STRING, "\
    "groupdescr STRING, description STRING, buildtime INTEGER, size INTEGER, id_source INTEGER"
@@ -425,7 +475,7 @@ generateSQLite_packages(struct configTag *ct, sqlite3 *db, int arch) {
                }
                sqlite3_finalize(stmt);
             } else if (strstr(currpackage->require[i]->name,"rpmlib(") != currpackage->require[i]->name) {
-               fprintf(stderr, "WARNING: package %s require %s not in provided list\n", currpackage->name, currpackage->require[i]->name);
+               fprintf(stderr, "WARNING: package %s requires %s not in provided list\n", currpackage->name, currpackage->require[i]->name);
             }
          }
       }
@@ -440,20 +490,23 @@ generateSQLite_packages(struct configTag *ct, sqlite3 *db, int arch) {
 #define SQLITE_TABLE_sources "id INTEGER PRIMARY KEY, "\
    "name STRING, altrepository INTEGER, epoch INTEGER, version STRING, release STRING, summary STRING, id_packager INTEGER, "\
    "groupdescr STRING, description STRING, url STRING, license STRING, arch STRING, buildarchs STRING, " \
-   "excludearch STRING, buildtime INTEGER, size INTEGER, id_changelog INTEGER"
+   "excludearch STRING, buildtime INTEGER, size INTEGER"
 //#define SQLITE_TABLE_sources_files_rel "id INTEGER PRIMARY KEY, id_source INTEGER, id_files INTEGER"
 //#define SQLITE_TABLE_sources_provided_rel "id INTEGER PRIMARY KEY, id_source INTEGER, id_provided INTEGER"
 #define SQLITE_TABLE_changelog "id INTEGER PRIMARY KEY, "\
    "id_source INTEGER, time INTEGER, id_packager INTEGER, release STRING, text STRING"
 #define SQLITE_TABLE_buildrequires "id INTEGER PRIMARY KEY, "\
    "id_source INTEGER, buildrequirename STRING, buildrequireflags INTEGER, buildrequireversion STRING"
+#define SQLITE_TABLE_warnings "id INTEGER PRIMARY KEY, "\
+   "repository STRING, arch STRING, name STRING, text STRING"
+#define SQLITE_TABLE_needrebuild "id INTEGER PRIMARY KEY, "\
+   "id_source INTEGER, id_source_rebuild INTEGER, id_provider INTEGER"
 
 int
 generateSQLite_sources(struct configTag *ct, sqlite3 *db) {
 
     struct headerSourceList* currsource;
     int i;
-    long nextchangelogid = 1;
 
     SQLite_init_table(db, "sources", SQLITE_TABLE_sources);
     SQLite_init_table(db, "sources_source", SQLITE_TABLE_sources_source);
@@ -462,19 +515,20 @@ generateSQLite_sources(struct configTag *ct, sqlite3 *db) {
 //    SQLite_init_table(db, "sources_provided_rel", SQLITE_TABLE_sources_provided_rel);
     SQLite_init_table(db, "changelog", SQLITE_TABLE_changelog);
     SQLite_init_table(db, "buildrequires", SQLITE_TABLE_buildrequires);
+    SQLite_init_table(db, "warnings", SQLITE_TABLE_warnings);
+    SQLite_init_table(db, "needrebuild", SQLITE_TABLE_needrebuild);
     SQLite_begin_transaction(db);
 
     currsource = ct->headersourcelist;
     while (currsource != NULL) {
        if (currsource->altrepository == ct->repository_level) {
-          snprintf(sqlite3_query, PATH_MAX, "INSERT INTO sources VALUES(%ld,?,%d,%ld,?,?,?,%ld,?,?,?,?,?,?,?,%ld,%ld,%ld);",
+          snprintf(sqlite3_query, PATH_MAX, "INSERT INTO sources VALUES(%ld,?,%d,%ld,?,?,?,%ld,?,?,?,?,?,?,?,%ld,%ld);",
              currsource->id,
              currsource->altrepository,
              currsource->epoch,
              currsource->packager->id,
              currsource->buildtime,
-             currsource->size,
-             (currsource->changelog?nextchangelogid:0));
+             currsource->size);
           if (sqlite3_prepare_v2(db, sqlite3_query, -1, &stmt, NULL)) {
              fprintf(stderr, "ERROR: SQLite: (%s) %s\n", sqlite3_query, sqlite3_errmsg(db));
           }
@@ -573,8 +627,16 @@ generateSQLite_sources(struct configTag *ct, sqlite3 *db) {
        }*/
 
           if (currsource->changelog) {
-             nextchangelogid = generateSQLite_add_changelog(db, currsource->changelog, currsource->id) + 1;
+             generateSQLite_add_changelog(db, currsource->changelog, currsource->id);
           }
+
+          if (currsource->firstrebuild) {
+             generateSQLite_add_needrebuild(db, currsource->firstrebuild, currsource->id);
+          }
+
+       }
+       if (currsource->firstwarning) {
+          generateSQLite_add_warnings(db, currsource->firstwarning, ct->repository[currsource->altrepository]->tag);
        }
        currsource = currsource->next;
     }
@@ -635,6 +697,7 @@ generateSQLite(struct configTag *ct)
     }
 
     generateSQLite_sources(ct, db);
+
     generateSQLite_packagers(db);
 
     sqlite3_close(db);
diff --git a/src/distromatic.c b/src/distromatic.c
index 04dfb1c..753aeba 100644
--- a/src/distromatic.c
+++ b/src/distromatic.c
@@ -252,7 +252,7 @@ handleObsoletedPackages(struct configTag *ct, int archidx)
                                  prov->provider[i]->name,
                                  prov->provider[i]->arch,
                                  ct->repository[prov->provider[i]->altrepository]->tag);
-                              addWarning(prov->provider[k]->sourceheader, buf);
+                              addWarning(prov->provider[k]->sourceheader, currheader, buf);
                         logmsg(LOG_WARNING,"%s", buf);
                         break;
                     }
@@ -269,7 +269,7 @@ handleObsoletedPackages(struct configTag *ct, int archidx)
                    prov->provider[k]->name,
                    prov->provider[k]->arch,
                    ct->repository[prov->provider[k]->altrepository]->tag);
-                addWarning(prov->provider[i]->sourceheader, buf);
+                addWarning(prov->provider[i]->sourceheader, prov->provider[i], buf);
                 logmsg(LOG_WARNING,"%s", buf);
                 obs[k]=i;
               }
@@ -350,7 +350,7 @@ handleObsoletedPackages(struct configTag *ct, int archidx)
                         ct->repository[prov->provider[i]->altrepository]->tag);
                      }
                   }
-                  addWarning(currheader->sourceheader, buf);
+                  addWarning(currheader->sourceheader, currheader, buf);
                   logmsg(LOG_WARNING,"%s", buf);
                }
             }
@@ -399,7 +399,7 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                   currheader->version,
                   currheader->next->version);
                   fprintf(stderr,"Warning: %s\n",warning);
-                  addWarning(currheader->sourceheader,warning);
+                  addWarning(currheader->sourceheader, currheader, warning);
             }
          } else if (currheader->altrepository >= currheader->sourceheader->updatingparent->altrepository) {
             currheader->next->obsoleted = 1;
@@ -415,7 +415,7 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                   currheader->next->version,
                   currheader->version);
                fprintf(stderr,"Warning: %s\n",warning);
-               addWarning(currheader->sourceheader,warning);
+               addWarning(currheader->sourceheader, currheader->next, warning);
             }
          }
       }
@@ -472,7 +472,7 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                      ct->repository[currheader->altrepository]->tag,
                      currheader->require[i]->name);
                   fprintf(stderr,"Warning: %s\n",warning);
-                  addWarning(currheader->sourceheader,warning);
+                  addWarning(currheader->sourceheader, currheader, warning);
                }
             } else { /* provided->numproviders > 0 */
                /* warn about provides only provided by older packages */
@@ -495,7 +495,7 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                         ct->repository[provided->provider[j]->altrepository]->tag);
                      addRebuild(provided->provider[j]->sourceheader,
                         currheader->sourceheader, provided->provider[j]);
-                     addWarning(provided->provider[j]->sourceheader,warning);
+                     addWarning(provided->provider[j]->sourceheader, currheader, warning);
                   }
                   fprintf(stderr,"Warning: %s\n",warning);
                } else {
@@ -519,9 +519,9 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                            ct->repository[provided->provider[j]->altrepository]->tag);
                      }
                      fprintf(stderr,"Warning: %s\n",warning);
-                     addWarning(currheader->sourceheader,warning);
+                     addWarning(currheader->sourceheader, currheader, warning);
                      for (j = 0; j < provided->numproviders; j++) {
-                        addWarning(provided->provider[j]->sourceheader,warning);
+                        addWarning(provided->provider[j]->sourceheader, currheader, warning);
                      }
                   }
                }
@@ -602,7 +602,7 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                         provided->name,
                         provided->version[foundprovider]);
                      logmsg(LOG_WARNING,"%s", warning);
-                     addWarning(currheader->sourceheader, warning);
+                     addWarning(currheader->sourceheader, currheader, warning);
                   } else if (!found) {
                      for (j = 0; j < provided->numproviders; j++) {
                         if (!checkVersionWithFlags(
@@ -631,12 +631,12 @@ resolveFirstLevelDependencies(struct configTag *ct, int archidx)
                            for (k = 0; k < provided->numproviders; k++) {
                               if (provided->provider[k]->sourceheader &&
                                     (provided->provider[k]->altrepository == ct->repository_level)) {
-                                 addWarning(provided->provider[k]->sourceheader, warning);
+                                 addWarning(provided->provider[k]->sourceheader, currheader, warning);
                                  addRebuild(provided->provider[k]->sourceheader,
                                     currheader->sourceheader, provided->provider[k]);
                               }
                               if ((currheader->altrepository == ct->repository_level)) {
-                                 addWarning(currheader->sourceheader, warning);
+                                 addWarning(currheader->sourceheader, currheader, warning);
                               }
                            }
                         }
@@ -725,7 +725,7 @@ resolveFirstLevelSourceDependencies(struct configTag *ct, int archidx)
                        currsourceheader->name,
                        ct->repository[currsourceheader->altrepository]->tag,
                        warning);
-                    addWarning(currsourceheader,warning);
+                    addWarning(currsourceheader, NULL, warning);
                  }
 	        //} else if (provided->numbuildproviders > 1) {
 	           /*printf("Multiple providers for %s in package %s\n",currsourceheader->require[i]->name,currsourceheader->name);*/
@@ -1187,7 +1187,7 @@ main(int argc, char *argv[])
                    logmsg(LOG_WARNING, "%s: %s",
                       currheadersourcelist->name,
                       warning);
-                      addWarning(currheadersourcelist, warning);
+                      addWarning(currheadersourcelist, NULL, warning);
                 }
 
                 warning[0] = '\0';
@@ -1204,7 +1204,7 @@ main(int argc, char *argv[])
                    logmsg(LOG_WARNING, "%s: %s",
                       currheadersourcelist->name,
                       warning);
-                   addWarning(currheadersourcelist, warning);
+                   addWarning(currheadersourcelist, NULL, warning);
                 }
 
                 warning[0] = '\0';
@@ -1232,7 +1232,7 @@ main(int argc, char *argv[])
                    logmsg(LOG_WARNING, "%s: %s",
                       currheadersourcelist->name,
                       warning);
-                   addWarning(currheadersourcelist, warning);
+                   addWarning(currheadersourcelist, NULL, warning);
                 }
                 currheadersourcelist = currheadersourcelist->next;
              }
diff --git a/src/headerlist.c b/src/headerlist.c
index a352e32..055465c 100644
--- a/src/headerlist.c
+++ b/src/headerlist.c
@@ -52,13 +52,13 @@ int sourcerpmselector(const struct dirent *entry);
 
 const int bufsize = PATH_MAX;
 
-struct warningList* addWarning(struct headerSourceList *pkg, char* text)
+struct warningList* addWarning(struct headerSourceList *srcpkg, struct headerList *package, char* text)
 {
      struct warningList *currwarning, *prevwarning = NULL;
 
-     if (!pkg) return NULL;
+     if (!srcpkg) return NULL;
 
-     currwarning = pkg->firstwarning;
+     currwarning = srcpkg->firstwarning;
 
      while (currwarning) {
           if (!strcmp(currwarning->text,text)) return currwarning;
@@ -68,14 +68,22 @@ struct warningList* addWarning(struct headerSourceList *pkg, char* text)
 
      currwarning=malloc(sizeof(struct warningList));
      if (!currwarning) return NULL;
-     if (!pkg->firstwarning) pkg->firstwarning=currwarning;
+     if (!srcpkg->firstwarning) srcpkg->firstwarning=currwarning;
+
+     if (package) {
+        currwarning->arch = strdup(package->arch);
+        currwarning->name = strdup(package->name);
+     } else {
+        currwarning->arch = "src";
+        currwarning->name = strdup(srcpkg->name);
+     }
 
      currwarning->text=strdup(text);
      if (!currwarning->text) return NULL;
 
      currwarning->next=NULL;
      if (prevwarning) prevwarning->next=currwarning;
-     return pkg->firstwarning;
+     return srcpkg->firstwarning;
 }
 
 struct rebuildList* addRebuild(struct headerSourceList *pkg, struct headerSourceList* sourceheader, struct headerList* provider)
@@ -998,7 +1006,7 @@ void addNewToSourceHeaderList(struct headerSourceList *newheadersourcelist,
                 newheadersourcelist->name,
                 ct->repository[newheadersourcelist->altrepository]->tag,
                    warning);
-                addWarning(newheadersourcelist, warning);
+                addWarning(newheadersourcelist, NULL, warning);
            }
         }
        newheadersourcelist->next = currheadersourcelist->next;
@@ -1212,7 +1220,7 @@ int addToSourceHeaderList(struct configTag *ct, int mode, int altrepository) {
                        logmsg(LOG_WARNING,
                           "%s: missing changelog name and/or text",
                           newheadersourcelist->name);
-                       addWarning(newheadersourcelist, warning);
+                       addWarning(newheadersourcelist, NULL, warning);
                     }
                     changelog = changelog->next;
                  }
@@ -1314,7 +1322,7 @@ int addToSourceHeaderList(struct configTag *ct, int mode, int altrepository) {
                       logmsg(LOG_WARNING,
                          "%s: missing changelog name and/or text",
                          newheadersourcelist->name);
-                      addWarning(newheadersourcelist, warning);
+                      addWarning(newheadersourcelist, NULL, warning);
                    }
                    changelog = changelog->next;
                 }
diff --git a/src/include/headerlist.h b/src/include/headerlist.h
index 8ad4cab..a95d2fe 100644
--- a/src/include/headerlist.h
+++ b/src/include/headerlist.h
@@ -52,13 +52,17 @@ struct fileGroupList {
 
 struct warningList {
      char* text;
+     char *arch;
+     char *name;
      struct warningList *next;
+     long id;
 };
 
 struct rebuildList {
      struct headerSourceList *sourceheader;
      struct headerList *provider;
      struct rebuildList *next;
+     long id;
 };
 
 struct Require {
@@ -219,7 +223,7 @@ addToHeaderList(struct configTag *ct,
                 const char* altscantag[ALT_REPS_MAX],
                 int arch);
 
-struct warningList* addWarning(struct headerSourceList *pkg,char* text);
+struct warningList* addWarning(struct headerSourceList *srcpkg, struct headerList *package, char* text);
 
 struct rebuildList* addRebuild(struct headerSourceList *pkg, struct headerSourceList* sourceheader, struct headerList* provider);
 
diff --git a/src/reports.c b/src/reports.c
index 018f9f1..5a93483 100644
--- a/src/reports.c
+++ b/src/reports.c
@@ -1074,7 +1074,7 @@ generateHTML_SRPMSFiles(struct configTag *configtag)
                      {
                         snprintf(buffer, PATH_MAX, "has build requirement %s which is only provided in this repository",
                            currheadersourcelist->require[i]->resolved->name);
-                           addWarning(currheadersourcelist, buffer);
+                           addWarning(currheadersourcelist, NULL, buffer);
                      }
                   }
                } else {
@@ -1483,7 +1483,7 @@ generateHTMLFiles(struct configTag *ct, int arch)
                           currheaderlist->require[i]->resolved->provider[0]->name,
                           ct->arch[arch],
                           ct->repository[currheaderlist->require[i]->resolved->provider[0]->altrepository]->tag);
-                       addWarning(currheaderlist->sourceheader, buffer);
+                       addWarning(currheaderlist->sourceheader, currheaderlist, buffer);
                     }
                  }
               } else {