Dear all,

I´ve installed in the customer´s Sandbox NPSP and Marketing Cloud connect and when I´m performing the APEX Test during the validation of the change sets to Production, the system is giving 1012 fails of 1842, how is that even possible with a Salesforce managed software?
I´m Junior in this matter and not a developer, I don´t know how many errors in the APEX test the customer had before and couldn´t check in their production either. But we need help in this matter because this is Salesforce managed code and we couldn´t access it to even see what is giving the error or change the test conditions. 

I have removed my APEX code since I used it only for a minor thing, but... even with the code disabled (trigger and class), the errors from the managed packages are there and I want to give our customer the best possible assistance.

I know that A LOT of the errors are from Validation rules and required fields (more than half of them), but ... how do I solve them if I´m not able to modify the test? 

And what about the other kind of errors, where do they come? Did you have similar problems? 

The list of errors is huge, so I will leave here just a glimpse of some:
 

Test_abTestDetailControl constructorTest System.QueryException: List has no rows for assignment to SObject Stack Trace: Class.et4ae5.TestUtility.createUser: line 303, column 1 Class.et4ae5.Test_abTestDetailControl.constructorTest: line 49, column 1 

Test_abTestDetailControl testCancel System.QueryException: List has no rows for assignment to SObject Stack Trace: Class.et4ae5.TestUtility.createUser: line 303, column 1 Class.et4ae5.Test_abTestDetailControl.getabTestDetailControl: line 10, column 1 

Class.et4ae5.Test_abTestDetailControl.testCancel: line 78, column 1 Test_businessUnitListControl test_save System.QueryException: List has no rows for assignment to SObject Stack Trace: Class.et4ae5.Test_businessUnitListControl.setupData: line 14, column 1 

Class.et4ae5.Test_businessUnitListControl.test_save: line 545, column 1 Test_businessUnitListControl test_selectAll System.QueryException: List has no rows for assignment to SObject Stack Trace: Class.et4ae5.Test_businessUnitListControl.setupData: line 14, column 1 

Class.et4ae5.Test_businessUnitListControl.test_selectAll: line 459, column 1 ACCT_IndividualAccounts_TEST attachToIndividualAccount System.DmlException: Insert failed. First exception on row 0; first error: FIELD_CUSTOM_VALIDATION_EXCEPTION, El teléfono, el correo electrónico o el móvil deben estar cumplimentados.: [] Stack Trace: Class.npsp.ACCT_IndividualAccounts_TEST.attachToProcessor: line 521, column 1 Class.npsp.ACCT_IndividualAccounts_TEST.attachToIndividualAccount: line 500, column 1 ACCT_IndividualAccounts_TEST contactAddedToExistingHHAccount System.DmlException: Insert failed. First exception on row 0; first error: FIELD_CUSTOM_VALIDATION_EXCEPTION, El teléfono, el correo electrónico o el móvil deben estar cumplimentados.: [] Stack Trace: 

Class.npsp.ACCT_IndividualAccounts_TEST.contactAddedToExistingProcessor: line 675, column 1 

Class.npsp.ACCT_IndividualAccounts_TEST.contactAddedToExistingHHAccount: line 659, column 1 BDI_DataImport_TEST2 ManyDIMultiContactMatchRules5 System.AssertException: Assertion Failed: Expected: 3, Actual: 0 Stack Trace: 

Class.npsp.BDI_DataImport_TEST2.ManyDIMultiContactMatchRules: line 1167, column 1 Class.npsp.BDI_DataImport_TEST2.ManyDIMultiContactMatchRules5: line 1125, column 1 BDI_DataImport_TEST2 ManyDIMultiContactMatchRules6 System.AssertException: Assertion Failed: Expected: 3, Actual: 0 Stack Trace: 

Class.npsp.BDI_DataImport_TEST2.ManyDIMultiContactMatchRules: line 1167, column 1 Class.npsp.BDI_DataImport_TEST2.ManyDIMultiContactMatchRules6: line 1129, column 1 UTIL_UnitTestData_TEST testCreateNewUserWithDefaultRole System.QueryException: List has no rows for assignment to SObject Stack Trace: 

Class.npsp.UTIL_UnitTestData_TEST.createNewUserWithRoleForTests: line 355, column 1 Class.npsp.UTIL_UnitTestData_TEST.createNewUserForTests: line 409, column 1 Class.npsp.UTIL_UnitTestData_TEST.testCreateNewUserWithDefaultRole: line 468, column 1 UTIL_UnitTestData_TEST testCreateNewUserWithRandomRole System.QueryException: List has no rows for assignment to SObject Stack Trace: 

Class.npsp.UTIL_UnitTestData_TEST.createNewUserWithRoleForTests: line 355, column 1 Class.npsp.UTIL_UnitTestData_TEST.testCreateNewUserWithRandomRole: line 485, column 1

Thank you very much!

PS: I can´t open a Salesforce case since It doesn´t allow me from a Partner or standard user account.