Diagnosis

The extension ledger PL can't have more companies assigned than its underlying ledger 2L.

Procedure

Assign company code TMIN also to the underlying ledger 2L of the extension ledger PL in Define Ledgers and Currency Settings

SOLUTION:

STEP 1: Go to Transaction Code FINSC_LEDGER > select Ledger 'PL"

STEP 2: Click on Company code settings for the company code and select your company code >> click on delete (-) and SAVE.

Thanks,

Adharsh