How To Fix W/145 - Currency & cannot be converted to ISO code

SAP Error Message - Details

• Message type: E = Error

• Message class: W/ -

• Message number: 145

• Message text: Currency & cannot be converted to ISO code

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W/145 - Currency & cannot be converted to ISO code ?

  The SAP warning message W/145: Currency & cannot be converted to ISO code typically occurs when the system tries to convert a local currency key to its corresponding ISO currency code but fails because the mapping is missing or incorrect.
  
  Cause
  
  The currency key used in the transaction or master data does not have a corresponding ISO currency code maintained in the system.
  This usually happens if the currency key is custom-defined or not standard, and the ISO code mapping has not been set up.
  It can also occur if the currency key is obsolete or incorrectly entered.
  
  
  Explanation
  SAP internally uses ISO currency codes (like USD, EUR, JPY) for many processes, especially in international transactions, reporting, and integration scenarios. The local currency keys (like USD, EUR, or custom keys) must be mapped to these ISO codes in the system.
  When the system cannot find this mapping, it issues the warning W/145 indicating it cannot convert the currency key to an ISO code.
  
  Solution
  
  
  Check Currency Key Maintenance:
  
  Go to transaction OBBS (Maintain Currency Codes).
  Verify if the currency key in question exists.
  Check if the ISO currency code is correctly maintained for that currency key.
  
  
  
  Maintain ISO Currency Code:
  
  If missing, maintain the ISO currency code for the currency key.
  For example, for currency key USD, the ISO code should be USD.
  For custom currency keys, assign the correct ISO code or create a new ISO code if necessary.
  
  
  
  Check Master Data and Transactions:
  
  Verify if the currency key used in master data (customers, vendors, materials) or transactions is correct.
  Correct any incorrect or obsolete currency keys.
  
  
  
  Custom Currency Keys:
  
  If you are using custom currency keys, ensure that they are properly mapped to ISO codes.
  This mapping is essential for integration with other SAP modules and external systems.
  
  
  
  Transport Changes:
  
  If changes are made in a development system, ensure they are transported to quality and production systems.
  
  
  
  
  Related Information
  
  Transaction OBBS: Maintain currency codes and ISO currency codes.
  Table TCURC: Currency codes and their ISO equivalents are stored here.
  SAP Note: Check for any SAP Notes related to currency code mapping issues.
  Integration Scenarios: Currency ISO codes are critical for interfaces like ALE, IDocs, and external reporting tools.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  W/145 Currency & cannot be converted to ISO code
  
  
  Cause
  Missing or incorrect ISO currency code mapping for the currency key
  
  
  Solution
  Maintain ISO currency code in OBBS for the currency key; correct master data if needed
  
  
  Transaction
  OBBS (Maintain Currency Codes)
  
  
  Table
  TCURC (Currency Codes)
  
  
  
  
  If you maintain the ISO currency codes properly, this warning will be resolved, ensuring smooth currency conversions and reporting in SAP.