Don’t forget,
You can find all the examples below by downloading, then importing into Postman, the collection :
Quick start / 5. Test your first query in Postman

JournalTypes type in PURCHASE,SALES

query {
    journalTypes (
        where: { 
          type: {in: [PURCHASE_INVOICE, SALES_INVOICE]}
        }
    ){
        edges {
            node {
               id
               code
               type
               name
            }
        }
        totalCount
        pageInfo {
            hasNextPage
        }
    }     
}

Employees that have at least a phone different than mobile

query {
    employees(where: { contacts: { some: { phones: { some: { type: { neq: MOBILE }}}}}}) {
        edges {
            node {
                id
                code
                name
                contacts {
                    name
                    surname
                    isDefault
                    phones  {
                        type
                        number
                    }
                }              
            }
        }
        totalCount
        pageInfo {
            hasNextPage
        }
    }  
}

AccountingAccounts pagination, next 5 from endCursor - new endCursor filled in

query ($endCursor:String!) {
    accountingAccounts (
        order:{code:ASC}
        first: 5
        after: $endCursor
        ) {
        edges {
            node {
                id
                code
                description
            }
            cursor
        }
        totalCount
        pageInfo {
            startCursor
            endCursor
            hasNextPage
            hasPreviousPage
        }
    }     
}

AccountingEntries customer debit >=1000 & debit<=2000

query {
    accountingEntries (
        where :{
          accountingEntryLines : { 
                some: { 
                    and: [
                        {debitAmount: { gte: 1000}},
                        {debitAmount: { lte: 2000}},
                        {accountingEntryThirdParty: { origin: { eq: CUSTOMER } } }
                    ]                
                }
          }
        }
        ){ 
        edges {
            node {
                id
                date
                number     
                accountingEntryLines {
                    description
                    debitAmount
                    accountingEntryThirdParty{
                        code
                    }
                }
            }
        }
        totalCount
        pageInfo {
            hasNextPage
        }
    }     
}

Dataloaders : SalesQuote containing a Specific Product with a Min Qty

query {
  salesQuotes (
    order: { documentDate: DESC },
    where: {
      and: [
        { documentDate: { gte: "2024-01-01" } },
        { documentDate: { lte: "2025-04-30" } },
        { lines: { some: { 
          and: [ 
            { productCode : {eq :"CLMENWATCH"}},
            { unitPrice: {gte : 5}},
          ]
        }}}
      ]
    }
  ) {
    edges {
      node {
        id
        socialName
        operationalNumber
        creationDate
        customerId
        customer {
          id
          code
          vatNumber
          salesDiscountGroupId
          salesDiscountGroup{
            code
            name
          }
        }
        documentDate
        status
        totalNet
        discount
        lines {
          productCode
          productName
          totalQuantity
          unitPrice
          firstDiscount
          totalNet
          product {
            id
            salesUnitPrice
            salesVatPercentage
          }
        }
      }
    }
    totalCount
    pageInfo {
      hasNextPage
    }
  }
}

Aggregations: Sum of total Net and total Quantity of Sales Quote Lines by Product.

query {
    salesQuoteLines (
    first: 3
    where: {
        and: [
        { salesQuote: { documentDate: { gte: "2024-01-01" , lte: "2025-12-31" } } }
        ]
    },
    ) {
    edges {
        node {
        productId
        salesQuote {
            documentDate
        }
        totalQuantity
        totalNet
        }
    }
    aggregate(
        aggregateFields: ["totalQuantity", "totalNet"],
        groupFields: ["productId", "salesQuote.documentDate|Quarter"]
        orderFields: ["totalQuantity|DESC"] 
    ) {
        groupValues {value}
        aggregates {value}
    }
    }
}  

Multi queries

query {
    accountingExercises(
        where: {status: {eq: OPEN}}
        last:1
        ) {
        edges {
            node {
               startDate
            }
        }
    },
      journalTypes(
         where: {type: {eq: SALES_INVOICE}}
         first:1) {
        edges {
            node {
               code
               name
               id
            }
        }
    },
       documentTypes (where : { code : { eq : "01" }}) {
        edges {
            node {
                id
                code
                name
                legislationCode
            }
        }
    },
        customers (
        where: {
            code: {eq:"CARAT"}
            disabled: {eq: false}
            }
        first:1
        ) {
        edges {
            node {
                  id
                  code
                  socialName
                  defaultAccountingAccountId
            }
        }
        }
}