https://userapps.support.sap.com/sap/support/knowledge/en/2543804
2543804 - Popup raised on EKPO-OIINEX for pressing F4 in transaction ME31K | SAP Knowledge Base...
In transaction ME31K in Outline Agreement Item level a popup is occurred after pressing F4 on the ' Code for internal or external excise duty rate...
https://userapps.support.sap.com/sap/support/knowledge/en/2300802
2300802 - BADI ME_PROCESS_OUT_CUST is not called in ME31L/ME32L/ME31K/ME32K - SAP ERP & SAP S/4...
BADI ME_PROCESS_OUT_CUST is never called in transactions: ME31K,ME32K, ME31L , ME32L.
https://userapps.support.sap.com/sap/support/knowledge/en/2425643
2425643 - Plant and Material fields cannot be changed in transaction ME31K or ME31L | SAP Knowledge...
Material in contract item is not changeable. Plant is not modifiable in transaction ME31K / ME32K or ME31L / ME32L.
https://userapps.support.sap.com/sap/support/knowledge/en/2770786
2770786 - Authorization check on blank plant in ME31K, ME32K, ME33K | SAP Knowledge Base Article
In transaction ME31K, ME32K, ME33K error message 06 199 'Missing authorization: Outline Agreeme Create Plant' raised.