b24jssdk filtering

Bitrix24 has two filter dialects. They are not interchangeable — each API version accepts only its own. Pick the dialect that matches the action surface you're using.

v2 — prefix-keyed object

Used by $b24.actions.v2.{call,callList,fetchList}.make({ params: { filter: ... }}). The operator is a prefix on the field name.

const params = {
  filter: {
    '>=opportunity': 50000,
    '<=opportunity': 200000,
    '!stageId': 'LOST',
    '=%title': 'A%'
  }
}