[{_id:ObjectId("61ae12bfb8047effd0ac2a01"),data:[{xml:{messageId:1638798015073,xmlString:"someXML"},data:[{customerId:123456,validation:{isValid:true,message:""},docs:[{objectId:"PA1106:zt:bb302216879669b58c141b12dcdd5eb0",writtenBack:false}]},{customerId:55555,validation:{isValid:true,message:""},docs:[{objectId:"PA1106:zt:bb302216879669b58b143ef38c016217",writtenBack:true}]}]},{xml:{messageId:1638798015094,xmlString:"someXML"},data:[{customerId:55555,validation:{isValid:true,message:""},docs:[{objectId:"PA1106:zt:bb302216879669b58c1416129062c2d2",writtenBack:false},{objectId:"PA1106:zt:b8be9ea04011c2a18c148a0d4c9d6aab",writtenBack:true}]},]},],createdAt:"2021-12-06T13:40:15.096Z",createdBy:"Test"}]

db.collection.update({_id:"61ae12bfb8047effd0ac2a01",},{$set:{"data.$.data.docs.$[doc].writtenBack":true}},{arrayFilters:[{"doc.objectId":"PA1106:zt:bb302216879669b58b143ef38c016217"}]})