How To Fix OC300 - Customer / material combination is not valid

OC300 - Overview

• Message type: E = Error

• Message class: OC - IS-Oil: BDRP Bulk Distribution Requirement Planning messages

• Message number: 300

• Message text: Customer / material combination is not valid

What causes this issue?

You have input a customer, customer group , material or a material
group which does not exist.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The system does not proceed.

How to fix this error?

Please correct your entry.

Error message extract from SAP system. Copyright SAP SE.

OC300 - Details

• The SAP error message OC300, which states "Customer / material combination is not valid," typically occurs when there is an attempt to process a transaction (such as creating a sales order, delivery, or invoice) involving a specific customer and material combination that has not been set up correctly in the system. Here are the causes, solutions, and related information for this error:
  Causes:
  
  Missing Customer-Material Info Record: The customer-material info record (also known as the customer-material relationship) is not created for the specific combination of customer and material.
  Invalid Status: The customer or material may be in a status that does not allow transactions (e.g., blocked or inactive).
  Sales Area Issues: The sales area (which includes the sales organization, distribution channel, and division) may not be set up correctly for the customer or material.
  Material Master Data: The material may not be set up in the system or may not be relevant for the specific