What is the best way to do a mass load of e-mail addresses against existing receivables customers

Summary:

approximately 17.5 thousand existing customers which require e-mail addresses allocating against customer records.

This would be to facilitate the emailing of debt collection letters to customers rather than our existing solution where documents are printed and posted out

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Version (include the version you are using, if applicable):

Oracle Fusion Cloud Applications24C (11.13.24.07.0)

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