How To Fix CN688 - The purchasing data is incomplete

CN688 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 688

• Message text: The purchasing data is incomplete

What causes this issue?

You want to allocate an externally procurred component but have not
maintained all the data necessary for purchasing.
Purchasing requires the following data:
Requirements quantity and unit of measure
G/L account
Purchasing group
Material group

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

How to fix this error?

Complete your entries

Error message extract from SAP system. Copyright SAP SE.

CN688 - Details

• The SAP error message CN688, which states "The purchasing data is incomplete," typically occurs in the context of materials management and procurement processes. This error indicates that certain required purchasing data for a material or vendor is missing or incomplete, preventing the system from processing transactions related to purchasing.
  Causes:
  
  Missing Purchasing Info Records: The purchasing info record for the material may not exist or may be incomplete.
  Incomplete Vendor Master Data: The vendor master data may lack necessary purchasing information, such as purchasing organization, payment terms, or conditions.
  Material Master Data Issues: The material master may not have the required purchasing views maintained, or the purchasing group may be missing.
  Missing Conditions: Pricing conditions or other relevant conditions may not be set up in the system.
  Purchasing Organization Assignment: The material may not be assigned to the correct purchasing organization.
  
  Solutions:
  
  Check Purchasing Info Records: Go to the transaction code ME11 (Create Info Record) or ME12 (Change