If i add 3 products of different niches in 1 campaign, does it affect the result

Yes, it will affect results. The better practice is always to add the same niche products in one campaign for better conversions.

Yes, it affects the results of the campaign results. Always add the same niche products in one campaign for better conversions.

Results will be affected by it. For better conversions, it is best to add the same niche products to one campaign.

If the products have relevancy to the keywords that are used in the campaigns then it can give you good results but generally it is not recommended to add differenct niche products in one campaign

In fact, it will have an impact on the results. Adding the same niche products to one campaign increases conversions.

Yes, if you add different niches products in one campaign, it will affect your campaign results.

We should not add different niches in one campaign. Campaigns should be structured and organized. The best practice is to add every niche in an individual campaign.

It will be good if you create separate campaign for all the 3 products of different niche, but if you are doing this it will have affect on the results of the campaign, it can have good results if only product have relevancy between them, or the keywords you have targeted in the campaign are similar for all the 3 products.

The results of the campaign are affected by it. For better conversions, always add the same niche products to one campaign.

The best thing is you should include the product of same category in one campaign and it will be more effective.