How To Fix CNVA_20290_CHECK121 - At least one company code has differences regarding the tax postings

CNVA_20290_CHECK121 - Overview

• Message type: E = Error

• Message class: CNVA_20290_CHECK - Message class for company code merge preanalysis

• Message number: 121

• Message text: At least one company code has differences regarding the tax postings

At least one company code has differences regarding the tax postings in
the last balance sheet adjustment run. This means, that for at least one
company code the postings for the balance sheet adjustment also included
taxes, but not for all involved company codes. This has no effects on
you actual tax payment but has an effect on the internal tax
distribution.
If you want to use the tax postings for the merged company code, you
have to run the next balance sheet adjustment with tax posting. Note
that in this case, all tax postings of former runs which are not yet
considered are booked in the next period.

Error message extract from SAP system. Copyright SAP SE.

CNVA_20290_CHECK121 - Details

• The SAP error message CNVA_20290_CHECK121 indicates that there are discrepancies in tax postings across different company codes in your SAP system. This typically occurs during processes such as financial closing, intercompany transactions, or when trying to execute certain reports or postings that involve multiple company codes.
  
  Cause:
  
  Different Tax Settings: Each company code may have different tax settings or configurations, leading to inconsistencies in how taxes are calculated or posted.
  Inconsistent Tax Codes: The tax codes used in transactions may not be uniformly defined across the company codes, causing discrepancies.
  Different Tax Jurisdictions: If the company codes operate in different tax jurisdictions, they may have different tax rates or rules.
  Master Data Issues: Inconsistencies in master data (like vendor or customer records) across company codes can lead to differences in tax postings.
  Posting Periods: If the posting periods are not aligned across company codes, it can lead to discrepancies in tax calculations.
  
  
  Solution:
  
  Review Tax Configuration: Check the