Salesforce work in a multitenant environment. Many instances are working under a Salesforce platform. In this model, so there are no limitless resources. That’s the reason Salesforce laid this governor limit on different resources. There are defined limits on the type of instance own by an organization. Few such limits are number with SOQL queries result and similar on SOSL. Limit on the number of callout requests, timeout of HTTP requests. Limit on how many fields in an object. This limit varies with different salesforce editions(Essentials, Professional, Enterprise, Unlimited). An appeal is made to Salesforce support to exceed the limit. However, this will be additionally chargeable for an organization.