How To Fix COOPC303 - Conversion error at item &1; check the value formats

COOPC303 - Overview

• Message type: E = Error

• Message class: COOPC - Messages for SAP-OPC Integration

• Message number: 303

• Message text: Conversion error at item &1; check the value formats

What causes this issue?

When <DS:GLOS.D39F4241B0CAD411B11B0008C784EFB1>OPC items</> are read,
values from a lower-level system are transferred to the SAP system. When
they are written, they are sent from the SAP system to a lower-level
system. The value formats between these systems must be the same.
Otherwise, the system tries to convert them.
In this case, the system tried to convert the formats for item &V1&
(plant &V2&). However, an error occurred.
<ZU>Example:</>
An OPC item has the type <LS>Integer</> (figures). However, the user
tried to write a value that contains letters.

System Response

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?

Check whether the item to be read or written has the correct format.
Make sure that only adequate values are written to this item.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message COOPC303 - Conversion error at item &1; check the value formats ?

  The SAP error message COOPC303 indicates a conversion error at a specific item, which suggests that there is an issue with the format of the data being processed. This error typically occurs in the context of controlling (CO) or production planning (PP) modules when the system is unable to convert a value due to incorrect formatting or incompatible data types.
  Causes:
  
  Incorrect Data Format: The value being processed may not match the expected format (e.g., numeric values being passed as strings).
  Data Type Mismatch: The system may be expecting a certain data type (e.g., integer, decimal) but is receiving another.
  Missing or Invalid Data: Required fields may be empty or contain invalid characters.
  
  Configuration Issues: There may be issues with the configuration of the relevant data types or fields in the system.
  Localization Settings: Different regional settings (like decimal separators) may cause conversion issues.
  
  Solutions:
  
  Check Input Values: Review the values being processed for the item indicated in