Changing Decimal places in table TCURX

Question

Hi There
We have a business requirement to change the decimal places in table TCURX from 3 Decimals to 5 Decimal places. No previous postings have been made in foreign currencies.
If no transaction data has been posted in foreign currencies yet, will this have an impact?
What will the impact be?
Regards

Answer 1

Hi,
Refer to this SAP text:
In the R/3 System tables currency fields are stored as decimal figures with a variable number of decimal places. The decimal point is not stored in the field in the database. Instead, each currency field refers to a currency key field. In this transaction you assign the number of decimal places to this currency key uniquely. Example: If you have set currency USD to have two decimal places and you post an amount of 100 USD, an amount of 10000 USD is stored in the currency field in the database. Not until this
amount is processed further or is output does the system use the currency key from the reference field to determine the number of decimal places via this table. In this way the table content can be interpreted correctly for further processing or formatted for output with the correct punctuation. If after posting you changed the number of decimal places for USD, for example, to 3, the existing field content of 10000 would be interpreted for futher processing or output as 10 USD (10.000). This would mean that the contents of tables across the system would, for all currency fields containing an amount in USD,
be interpreted incorrectly by 10 per cent. To change the number of decimal places for a currency already in use, you must convert all the tables in the R/3 System that contain currency fields, so that the data integrity remains. This cannot, however, for both organizational reasons and under the runtime
aspect be carried out in a productive system. The following changes to the TCURX table can
thus lead to the loss of data integrity if you make the changes in a productive system or transport them into a productive system:
o Change to the number of decimal places of an existing currency
o Deletion of an entry from the TCURX table (corresponds to changing the decimal places to the standard value of two decimal places)
o Insertion of an entry in the TCURX (corresponds to changing the standard value of
2 decimal places to a different value), if this is a currency code that already exists
Uncritical changes are any made to this table during the Customizing of a new installation or the insertion of TCURX even during operations, if the currency codes have just been entered in the TCURC table using transaction OY03, signifying that no postings to these currency codes can have been carried out yet.
Regards,
Eli