HKTAB: mediaType should default to All (0), not Active (1)

[yannis-schmiedel]

Problem

Account statements and balance requests fail with error 9010 for Salzlandsparkasse (and likely other banks):

code: 9010
text: Unzulässige TAN-Medien-Art. Zulässig ist ausschließlich 0. (MDC15920000020)

Translation: "Invalid TAN media type. Only 0 is allowed."

Root Cause

TanMediaInteraction sends an HKTAB segment during dialog initialization when the selected TAN method has tanMediaRequirement > 0 (e.g. pushTAN 2.0 / method 923 has tanMediaRequirement: 2).

The HKTAB segment is constructed in src/interactions/tanMediaInteraction.ts with:

mediaType: TanMediaType.Active,  // value 1

Salzlandsparkasse rejects mediaType: 1 and only accepts mediaType: 0 (TanMediaType.All).

Expected Behaviour

HKTAB should use TanMediaType.All (0) as the default. The mediaType field controls which media entries are returned — All returns every configured medium, Active only currently active ones. Using All is the safer default: it does not assume the bank distinguishes active vs. inactive media, and several banks reject Active outright.

Suggested Fix

- mediaType: TanMediaType.Active,
+ mediaType: TanMediaType.All,

in src/interactions/tanMediaInteraction.ts, inside createSegments().

[robocode13]

I will have a look soon and incorporate the fix if tested successfully with a few banks

[nheinrichkl]

Hi, I am new to lib-fints and the process of getting connection to the bank. I came across the same issue last week and tried a lot. My bank returns a empty list of TanMedia but requires to set one. Perfect :)

I was able to fix this by setting tanMediaRequirement = 0 in bpd.supportedTanMethods.

Not sure if this is valid fix but at least I was able to get my bank transactions

[robocode13]

I created the new version 1.4.7 with the suggested fix above.
@yannis-schmiedel You may check if this works for you now
@nheinrichkl I am not sure if this is the same issue but you may also check if the new version fixes your problem

[nheinrichkl]

I will try with the new version. At least the error message was the same at my side.
Thanks for the fast fix !

[yannis-schmiedel]

Yes, it does now work succesfully.

Thank you very much