# Update one or more users by rep_id.

Update attributes on one or more users.

Input format can be columnar, e.g., {"rep_id":["mila","liam"],"gender":["f","m"]},
or row-wise, e.g., [{"rep_id":"mila","gender":"f"},{"rep_id":"liam","gender":"m"}].

Note: if a variable is supplied for only some rows, the value will be set to null for other rows, e.g.,
[{"rep_id":"mila","gender":"f"},{"rep_id":"liam","name":"Liam"}] will set mila's name
to null and liam's gender to null.

A safe way to avoid bugs like this is to always use the columnar format, e.g.,
{"rep_id":["mila","liam"],"gender":["f","m"]} doesn't set any values to null, or
{"rep_id":["mila","liam"],"gender":["f",null],"name":[null,"Liam"]} only sets the name
for liam and the gender for mila.

Max rows per request: 100000.

Endpoint: POST /reps
Version: 1.0.5
Security: ApiKeyAuth

## Response 400 fields (application/json):

  - `error` (string)
    Error message

  - `code` (string)
    Error code

## Response 401 fields (application/json):

  - `error` (string)
    Error message

  - `code` (string)
    Error code