[taler-docs] branch master updated: DD 50

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The following commit(s) were added to refs/heads/master by this push:
     new e691373f DD 50
e691373f is described below

commit e691373fd1c176729875524d23ad38df9cea2599
Author: MS <ms@taler.net>
AuthorDate: Fri Oct 27 12:30:44 2023 +0200

    DD 50
    
    Cutting the step where Nexus asks to the bank to
    confirm their bank account metadata.
---
 design-documents/050-libeufin-nexus.rst | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/design-documents/050-libeufin-nexus.rst 
b/design-documents/050-libeufin-nexus.rst
index 779e0b58..a471007e 100644
--- a/design-documents/050-libeufin-nexus.rst
+++ b/design-documents/050-libeufin-nexus.rst
@@ -315,3 +315,17 @@ Discussion / Q&A
   the bank response, may lead double-submission even if the HTTP talk ended
   well: it suffices to crash after having received a "200 OK" response but
   before setting the submitted flag to the database.
+
+* Given that PostFinance does not provide the IBAN & BIC pair
+  on HTD (or other "admin" message types), the client cannot
+  confirm the bank account metadata with the bank.  As a result,
+  it can only rely on what the configuration has in the
+  ACCOUNT_NUMBER value.
+  
+  The current design however does NOT mandate any particular
+  format for such configuration value, and given that the debtor
+  BIC is mandatory in the pain.001 generation, ACCOUNT_NUMBER
+  should be a Payto address with BIC and account holder name.
+  
+  Possibly, it may even be renamed to better match its content,
+  for example to ACCOUNT_METADATA.

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