https://userapps.support.sap.com/sap/support/knowledge/en/3575231
3575231 - Error CVI_API003 / FSBP_GENERIC008 "Reconciliation acct (KNB1-AKONT) is a required entry...
Error creating Customer in BP transaction trying to use a different company code than the saved in the "Maintain Users Own Data" (transaction SU3)...