How To Fix KPN090 - Errors/warnings occurred when adjusting costing dates

KPN090 - Overview

• Message type: E = Error

• Message class: KPN - Costing: Networks, Projects

• Message number: 090

• Message text: Errors/warnings occurred when adjusting costing dates

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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KPN090 - Details

• The SAP error message KPN090 indicates that there are issues related to adjusting costing dates in the system. This error typically arises during the process of cost planning or when trying to adjust the costing dates for materials or production orders. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Invalid Costing Date: The costing date being used may not be valid or may fall outside the permissible range defined in the system.
  Locked Periods: The period for which you are trying to adjust the costing date may be locked for posting or adjustments.
  Missing Master Data: Required master data (like material master or cost center) may be incomplete or missing.
  
  Configuration Issues: There may be configuration settings in the controlling (CO) module that are not set up correctly.
  Currency Issues: If there are currency conversion issues or if the currency settings are not aligned, it can lead to this